mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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// SPDX-License-Identifier: GPL-3.0
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/** @file Common.h
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*
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* Very common stuff (i.e. that every other header needs except vector_ref.h).
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*/
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#pragma once
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// way too many unsigned to size_t warnings in 32 bit build
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#ifdef _M_IX86
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#pragma warning(disable:4244)
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#endif
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#if _MSC_VER && _MSC_VER < 1900
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#define _ALLOW_KEYWORD_MACROS
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#define noexcept throw()
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#endif
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#ifdef __INTEL_COMPILER
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#pragma warning(disable:3682) //call through incomplete class
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#endif
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#include <libsolutil/vector_ref.h>
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#include <boost/version.hpp>
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#include <map>
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#include <utility>
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#include <vector>
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#include <functional>
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#include <string>
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namespace solidity
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{
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// Binary data types.
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using bytes = std::vector<uint8_t>;
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using bytesRef = util::vector_ref<uint8_t>;
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using bytesConstRef = util::vector_ref<uint8_t const>;
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// Map types.
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using StringMap = std::map<std::string, std::string>;
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// String types.
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using strings = std::vector<std::string>;
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/// RAII utility class whose destructor calls a given function.
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class ScopeGuard
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{
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public:
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explicit ScopeGuard(std::function<void(void)> _f): m_f(std::move(_f)) {}
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~ScopeGuard() { m_f(); }
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private:
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std::function<void(void)> m_f;
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};
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/// RAII utility class that sets the value of a variable for the current scope and restores it to its old value
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/// during its destructor.
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template<typename V>
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class ScopedSaveAndRestore
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{
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public:
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explicit ScopedSaveAndRestore(V& _variable, V&& _value): m_variable(_variable), m_oldValue(std::move(_value))
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{
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std::swap(m_variable, m_oldValue);
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}
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ScopedSaveAndRestore(ScopedSaveAndRestore const&) = delete;
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~ScopedSaveAndRestore() { std::swap(m_variable, m_oldValue); }
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ScopedSaveAndRestore& operator=(ScopedSaveAndRestore const&) = delete;
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private:
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V& m_variable;
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V m_oldValue;
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};
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template<typename V, typename... Args>
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ScopedSaveAndRestore(V, Args...) -> ScopedSaveAndRestore<V>;
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}
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